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文章基本信息

  • 标题:On the Empirical Estimation of Utility Distribution Damping Parameters Using Power Quality Waveform Data
  • 本地全文:下载
  • 作者:Kyeon Hur ; Surya Santoso ; Irene Y. H. Gu
  • 期刊名称:EURASIP Journal on Advances in Signal Processing
  • 印刷版ISSN:1687-6172
  • 电子版ISSN:1687-6180
  • 出版年度:2007
  • 卷号:2007
  • DOI:10.1155/2007/95328
  • 出版社:Hindawi Publishing Corporation
  • 摘要:

    This paper describes an efficient yet accurate methodology for estimating system damping. The proposed technique is based on linear dynamic system theory and the Hilbert damping analysis. The proposed technique requires capacitor switching waveforms only. The detected envelope of the intrinsic transient portion of the voltage waveform after capacitor bank energizing and its decay rate along with the damped resonant frequency are used to quantify effective X/R ratio of a system. Thus, the proposed method provides complete knowledge of system impedance characteristics. The estimated system damping can also be used to evaluate the system vulnerability to various PQ disturbances, particularly resonance phenomena, so that a utility may take preventive measures and improve PQ of the system.

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